There's a set of new ArcaniA: Gothic 4 screenshots on WorthPlaying showing off more of the upcoming role-playing sequel. For a look at the game in action, we can turn to the YouTube, where they have one, two, three trailers that add up to 25 minutes of gameplay footage. This set of clips obviously includes some spoilers, though this is mitigated somewhat by the dialog all being in German. Thanks LittleMe.

I'm sure there are more than three spells and six abilities. It's not a comprehensive analysis of the breadth and depth of the game, just some earlier gameplay (lvl ~13 iirc) of the campaign. I don't think it was intended to be used to review or analyze very much about the game except to show some of the dialog, some animations and combat.